TWM518932U - Structure of chair frame - Google Patents

Description

Chair frame structure

The present invention relates to a chair frame structure, and more particularly to a combination of a backrest of a baby table chair and a seat cover, and the table chair can be converted into a floor chair user.

According to the conventional baby table side chair 1, as shown in the first side view, the main body comprises two lower tubes 10, two support tubes 11, a back tube 12 and a cloth 13. The bottom end of the lower tube 10 is fixedly connected to the bottom end of the corresponding support tube 11, and the bottom end of the lower tube 10 is turned 180 degrees forward. An adjustment rod 14 is disposed at the bottom end of the support tube 11, and the adjustment rod 14 is disposed. There is a clamping space 15 between the top end and the bottom end of the support tube 11 for the edge of the table A to extend. The backrest tube 12 and the support tube 11 are connected and fixed by male and female plugging. The seat cloth 13 is made into a concave chair shape having a seat surface 132 and a back portion, and the recess has a T-shaped seat belt (not shown) for the baby foot extension end, and the top end 130 is sleeved on the vehicle. Outside the backrest tube 12, the two front ends 131 are respectively fastened by fasteners after bypassing the corresponding lower tubes 10. In use, the two supporting tubes 11 are placed on the edge of the table, and the clamping space 15 is extended into the table edge of the table A, and then the adjusting rod 14 is adjusted to clamp the top end of the adjusting rod 14 with the bottom surface of the table A. The support tube 11 and the adjustment rod 14 are clamped to the table A to fix the table chair 1 to the table side, and the baby end is seated on the seat surface 132 of the seat cloth 13 to form a baby table chair. However, the conventional baby table chair 1 can only be used at the table side, and the function is slightly insufficient in application, and it is obviously necessary to be improved.

In response to the above shortcomings, the creator has intensively conceived R&D creations, and after a long period of hard work, he has created this creation.

Therefore, the purpose of this creation is to provide a chair frame that can be combined with a backrest of a baby table chair and a seat cloth to convert the baby table side chair into a floor chair.

In order to achieve the above object, the chair frame structure of the present invention comprises two upper tubes, two positioning joint devices and two lower tubes. The upper tube has an upper end and a lower end respectively; the positioning joint device is respectively disposed under the lower ends of the two upper tubes, and is fixed to the lower end; the lower tube has a first end and a second end respectively The first end is pivotally connected to the positioning joint device, and the first end is constrained by the positioning joint device, and the positioning joint device can be pivoted at an angle of about 90 degrees or parallel to the upper tube for position conversion and Positioning. After the backrest tube and the seat cloth of the baby table chair are detached from the table chair frame, the two ends of the back tube are connected to the two upper tubes, and the front ends of the cloth are respectively bypassed by the corresponding upper tubes. After the rear fastening is completed, the table side chair can be converted into a baby floor chair; when not in use, the lower tube can be moved to the upper tube direction for storage.

In order to achieve the above objectives, the technical means and the achievable effects of the present invention, the following preferred embodiments are described in detail with reference to the accompanying drawings, which can be fully understood.

Referring to the second and third figures, the chair frame 2 of the present embodiment includes: two upper tubes 2A each having an upper end 20 and a lower end 21, and the upper end 20 extends horizontally with a horizontal tube 200. The two positioning joint devices 2B are respectively disposed below the lower ends 21 of the upper tubes 2A and are fixed to the lower ends 21 . And the two lower tubes 2C respectively have a first end 22 and a second end 23, and the first end 22 is pivotally connected to the positioning joint device 2B. The first end 22 is limited by the positioning joint device 2B, and is adjusted on the positioning joint device 2B to be positionally translated and positioned at an angle of about 90 degrees or parallel with the upper tube 2A, and the two lower tubes 2C are The two are connected by a connecting pipe 2D.

Referring to the fourth figure, the positioning joint device 2B includes a connecting seat 24, a connecting tube 25 and a spring 26. The connecting seat 24 is made of a metal material and has a right angle shape and has a horizontal section 24A and a vertical section 24B. The horizontal section 24A has a receiving groove 240 with a notch upward, and the horizontal section 24A has a first fixed end 241. The vertical section 24B has a second fixed end 242. The two side walls of the first fixed end 241 have a corresponding pivot hole 243. The second fixed end 242 is fixed to the lower end 21 of the upper tube 2A. The connecting tube 25 has a first connecting end 250 and a second connecting end 251. The first connecting end 250 extends into the receiving recess 240, and the two side walls respectively have an axial extension corresponding to the pivoting hole 243. a long opening 252, the bottom surface of the end has a corner-shaped push-out surface 253 (as shown in the fifth figure), the top mask has a slot 254, the second fixed end 242 end has a retaining wall 255; The second connecting end 251 is inserted into the lower tube 2C, and a sidewall is outwardly protruded from a positioning granule 256 (as shown in FIG. 5). The spring 26 is placed in the connecting tube 25 by the slot 254.

The two side walls of the first end 22 of the lower tube 2C respectively have a pair of long openings 220 corresponding to the long openings 252 of the connecting tube 25. The positioning granules 256 have a positioning hole 221 for the positioning granules 256 (as shown in the fourth and seventh figures), and the lower tube 2C is consolidated with the connecting tube 25, and is integrally coupled.

The outer side of the connecting seat 24 is covered by two corresponding outer covers 27, and the outer cover 27 is integrally fixed with the connecting seat 24, and the top surface is covered by a receiving surface 240 with a covering surface 273. The top cover 27 has a notch 270 corresponding to the top surface of the horizontal section 24A of the connecting seat 24. The notch 270 has a vertical extending portion 271 adjacent to the outer cover 27 at a right angle. The bottom end of the blocking portion 271 is the lower end. When the tube 2C is horizontally disposed, it can be pressed to the wall of the lower tube 2C. The sidewall of the outer cover 27 has a through hole 272 corresponding to the pivot hole 243 (as shown in FIGS. 4 and 6), and the vertical position of the through hole 272 is located in the notch 270. A pivoting shaft 28 extends into the through hole 272, the pivoting hole 243, the long opening 220 and the long opening 252 to pivotally connect the connecting seat 24 (outer cover 27) and the connecting tube 25 (lower tube 2C). The two ends of the spring 26 are in contact with the blocking wall 255 and the pivoting shaft 28, and the pivoting shaft 28 is moved. The spring 26 has a pushing force to move the connecting pipe 25 and the lower pipe 2C to the inside of the connecting seat 24. the power of.

When the upper tube 2A and the lower tube 2C are opened at right angles, as shown in the seventh figure, the first end 22 of the lower tube 2C and the connecting tube 25 are moved toward the inside of the connecting seat 24 by the restoring force of the spring 26, and the lower portion The bottom surface of the tube 2C is attached to the groove of the receiving groove 24 of the receiving groove 24, and the top surface of the lower tube 2C is pressed by the bottom end of the blocking portion 271, so that the lower tube 2C can maintain the horizontal setting at this time. , set perpendicular to the upper tube 2A. When the lower tube 2C is to be folded in parallel with the upper tube 2A, the lower tube 2C is pulled outward, and when the lower tube 2C is pulled out, the blocking wall 255 is compressed because the pivot shaft 28 is not moved. The spring 26 is moved outwardly away from the notch 270 position (as shown in Figure 8). The lower tube 2C is pulled upwards, and the lower tube 2C is pivotally pivoted with the pivoting shaft 28 as a rotation fulcrum, and the pushing surface 253 is vertically chamfered to complete the folding operation (such as the ninth and tenth drawings). The spring 26 has a force that the pushing wall 255 abuts against the groove surface of the receiving groove 240, and the wall of the lower tube 2C abuts against the side of the blocking portion 271.

The backrest tube 12 and the seat cloth 13 of the conventional baby table top chair 1 are removed and used in combination with the present chair frame 2 as a baby ground seat chair, as shown in FIG. The chair frame 2 of the present invention is opened at a right angle, and the backrest tube 12 of the conventional table chair 1 for infants is detached from the other frame of the table chair 1 and then the two ends of the backrest tube 12 are detached. The end of the horizontal tube 200 of the present invention is respectively fixed by the inner and outer tube insertion manner, and the front ends of the seat cloth 13 are respectively fastened around the upper tube 2A, and then the conventional baby table side chair 1 can be replaced. Into a baby ground chair (as shown in Figure 11).

The chair frame 2 of the present invention can be used in combination with the backrest tube 12 and the seat cloth 13 of the baby table chair, and the chair frame 2 can also be assembled with a backrest tube and a cloth to form a baby ground seat placed on the ground. For babies.

The accommodating recess 240 and the pivoting hole 243 are disposed on the connecting base 24 in the present embodiment. The notch 270 and the retaining portion 271 are disposed on the outer cover 27, and the receiving recess 240 and the pivoting hole 243 are disposed. The notch 270 and the blocking portion 271 may also be disposed at one of the connecting seat 24 or the outer cover 27 without excluding one of the connecting seat 24 or the outer cover 27.

Therefore, the creation has the following advantages and effects: 1. It can be combined with the backrest tube and seat cloth of the conventional table chair, and the table chair can be converted into a ground chair placed on the ground as a baby for the child to ride. The function of the table chair is increased and the use is variable. 2. Can be used as a chair frame for baby ground chairs. 3. The lower tube can be displaced in the direction of the upper tube to facilitate storage.

In summary, the present invention can achieve the intended function and purpose, and the detailed description can be implemented by those skilled in the art, and the above embodiments are only used to illustrate the creation, all equivalent structures. The change still does not deviate from the scope of the rights of this creation.

(known)
1‧‧‧Baby table chair
10‧‧‧Under the tube
11‧‧‧Support tube
12‧‧‧Backrest tube
13‧‧‧ seat cloth
14‧‧‧Adjustment rod
A‧‧‧Table board
15‧‧‧Clamping space
132‧‧‧Seat
131‧‧‧ front end
(this creation)
2‧‧‧ Chair frame
2A‧‧‧Upper tube
20‧‧‧Upper
21‧‧‧Bottom
200‧‧‧ horizontal tube
2B‧‧‧ positioning joint device
2C‧‧‧Under the tube
22‧‧‧ first end
23‧‧‧ second end
2D‧‧‧Connecting tube
24‧‧‧Connecting Block
25‧‧‧Connecting tube
26‧‧‧ Spring
24A‧‧‧ horizontal section
24B‧‧‧ vertical section
240‧‧‧ accommodates the groove
241‧‧‧First fixed end
242‧‧‧Second fixed end
243‧‧‧ pivot hole
250‧‧‧First connection
251‧‧‧second connection
252‧‧‧Long opening
253‧‧‧ pushed face
254‧‧‧ slotting
255‧‧ ‧Block
256‧‧‧Positioning
220‧‧‧Long Tongkou
221‧‧‧Positioning holes
27‧‧‧ Cover
273‧‧‧ Coverage
270‧‧ ‧ gap
271‧‧ ‧ blocking
272‧‧‧through hole
28‧‧‧ pivot shaft

The first figure shows a side view of a conventional table chair for infants. The second figure shows a combined perspective view of the present embodiment. The third figure shows an exploded perspective view of the present embodiment. The fourth figure shows an exploded perspective view of the positioning joint device of the present embodiment. Fig. 5 is a perspective view showing another angle of the connecting pipe of the present embodiment. The sixth figure shows an exploded perspective view of the outer cover of the present embodiment. Figure 7 is a cross-sectional view showing the combination of the positioning joint device of the present embodiment. The eighth figure is a schematic diagram of the folding action of the present embodiment (1). The ninth figure is a schematic diagram of the folding action of the present embodiment (2). The tenth figure shows a schematic diagram of the folding action of the present embodiment (3). The eleventh figure shows a side view of the present embodiment in combination with the seat cloth and the backrest tube of the baby table chair.

2A‧‧‧Upper tube

20‧‧‧Upper

21‧‧‧Bottom

200‧‧‧ horizontal tube

2C‧‧‧Under the tube

22‧‧‧ first end

23‧‧‧ second end

2D‧‧‧Connecting tube

24‧‧‧Connecting Block

25‧‧‧Connecting tube

26‧‧‧ Spring

240‧‧‧ accommodates the groove

241‧‧‧First fixed end

242‧‧‧Second fixed end

220‧‧‧Long Tongkou

27‧‧‧ Cover

270‧‧ ‧ gap

271‧‧ ‧ blocking

28‧‧‧ pivot shaft

Claims (8)

The structure of the chair frame comprises: two upper tubes respectively having an upper end and a lower end; two positioning joint devices are respectively disposed under the lower ends of the upper tubes and fixed to the lower ends; and the two lower tubes respectively have a first end and a second end, the first end is pivotally connected to the positioning joint device by a pivoting shaft, and the first end is limited by the positioning joint device, and the positioning joint device is opposite to the upper tube Approximately 90 degrees or parallel pivoting for positional shifting and positioning. The frame structure of claim 1, wherein the second ends of the two lower tubes are connected by a connecting tube. The seat frame structure according to claim 1 or 2, wherein the positioning joint device comprises a connecting seat, a connecting pipe and a spring; the connecting seat has a horizontal section and a vertical section, and the horizontal section is intermediate Having a receiving recess, the horizontal section has a first fixed end, the vertical section has a second fixed end, and the two side walls of the first fixed end have a corresponding pivot hole, and the second fixed end is The lower end of the upper tube is fixed; the connecting tube extends into the receiving groove, and has a first connecting end and a second connecting end, and the two side walls of the first connecting end respectively have an axis corresponding to the pivot hole a long opening extending toward the pivoting shaft for the long opening, the pivoting hole, the end of the first connecting end has a blocking wall; the second connecting end is fixed to the first end of the lower tube; The spring is inserted into the connecting tube, and the two ends of the spring are respectively attached to the pivoting shaft and the blocking wall; the receiving groove is located above the positioning hole and adjacent to the vertical section side, and has a vertical extension a stop portion, the bottom end of the stop portion is horizontally disposed when the lower tube Department of contact pressure to the wall of the tube. The chair frame structure of claim 3, wherein the two side walls of the first end of the lower tube respectively have a long opening corresponding to the long opening, and the pivot shaft extends into the long opening, The long opening and the pivot hole connect the connecting pipe and the lower pipe to the connecting seat. The seat frame structure of claim 4, wherein the second connecting end pipe wall of the connecting pipe protrudes outwardly from a positioning granule, and the first end of the lower pipe is provided with a positioning hole, the locating hole The positioning of the positioning particles is embedded. The chair frame structure of claim 3, wherein the two outer sides of the connecting seat are further provided with an outer cover, the two outer covers covering the outer side of the connecting seat; the top surface of the outer cover corresponds to the foregoing receiving The recess has a notch that opens to the position where the blocking portion is provided, and the outer cover has a through hole corresponding to the pivot hole for the pivot shaft to pass through. The frame structure of claim 6, wherein the upper end of the upper tube extends horizontally with a horizontal tube, and the horizontal tube can be connected with a backrest tube of a baby table chair, the back tube and the The vehicle is made into a top end of a cloth having a seat surface and is shaped like a chair. The front ends of the tablecloth are fastened around the upper tube, and the backrest tube and the seat portion of the baby table side chair are removed. The combination of the chair frame is converted into a baby ground chair. The chair frame structure of claim 3, wherein the first connecting end of the connecting pipe has a push-out surface at a corner of the end portion to pivot the connecting pipe; There is a slot for the spring to be placed in the connecting tube.